21003110410 has 16 divisors (see below), whose sum is σ = 37809275112. Its totient is φ = 8400427200.

The previous prime is 21003110407. The next prime is 21003110413. The reversal of 21003110410 is 1401130012.

It is an interprime number because it is at equal distance from previous prime (21003110407) and next prime (21003110413).

It can be written as a sum of positive squares in 4 ways, for example, as 16269257601 + 4733852809 = 127551^2 + 68803^2 .

It is a super-2 number, since 2×21003110410² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21003110413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11920 + ... + 205300.

Almost surely, 2^21003110410 is an apocalyptic number.

21003110410 is a deficient number, since it is larger than the sum of its proper divisors (16806164702).

21003110410 is a wasteful number, since it uses less digits than its factorization.

21003110410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204249.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 21003110410 its reverse (1401130012), we get a palindrome (22404240422).

The spelling of 21003110410 in words is "twenty-one billion, three million, one hundred ten thousand, four hundred ten".